Unpatched Zimbra Platforms Are Probably Compromised, CISA SaysUnpatched Zimbra Platforms Are Probably Compromised, CISA Says
Attackers are targeting Zimbra systems in the public and private sectors, looking to exploit multiple vulnerabilities, CISA says.

Security teams running unpatched, Internet-connected Zimbra Collaboration Suites (ZCS) should just go ahead and assume compromise, and take immediate detection and response action.
That's according to a new alert issued by the Cybersecurity and Infrastructure Security Agency, which flagged active Zimbra exploits for CVE-2022-24682, CVE-2022-27924, CVE-2022-27925, which are being chained with CVE-2022-37042, and CVE-2022-30333. The attacks lead to remote code execution and access to the Zimbra platform.
The result could be quite risky when it comes to shielding sensitive information and preventing email-based follow-on threats: ZCS is a suite of business communications services that includes an email server and a Web client for accessing messages via the cloud.
CISA, along with the Multi-State Information Sharing and Analysis Center (MS-ISAC), provided detection details and indicators of compromise (IoCs) to help security teams.
"Cyber-threat actors may be targeting unpatched ZCS instances in both government and private sector networks," according to a Zimbra advisory.
CISA and the MS-ISAC strongly urged users and administrators to apply the guidance in the Recommendations section of this Cybersecurity Advisory to help secure their organization's systems against malicious cyberactivity.
About the Author
You May Also Like
Securing the Remote Workforce
Feb 20, 2025Emerging Technologies and Their Impact on CISO Strategies
Feb 25, 2025How CISOs Navigate the Regulatory and Compliance Maze
Feb 26, 2025Where Does Outsourcing Make Sense for Your Organization?
Feb 27, 2025Shift Left: Integrating Security into the Software Development Lifecycle
Mar 5, 2025